javascript - Angularjs $http not returning Calls on ng-click after 1 st call -

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i have services use in landing controller. problem when app init $http gets called default. need give params based on click. have implmented ajax call on ng-click.

but getting same data on ng-click

var sent = angular.module("sentanalysis",["ngroute"]); var log = console.log.bind(console);      'use strict'; sent.service('sentiments', function ($http)  {     var sentiments = [];     return {         getdata: function(api,params,callback) {               log(api);             var cb = callback || angular.noop;             if(sentiments.length !== 0)              {                 cb(sentiments);             }else{                 $http.get(api,                 {                     params : params                  })                  .success(function(result)                      {                      sentiments = result;                     cb(result);                     })                     .error(function() {                         cb();                     })             }         }      } });

and controller is

app.controller('landingctrl',  function ($scope,$http,sentiments,$rootscope)  {   $scope.clickyesterday = function()  {      sentiments.getdata(api,params,function(res)      {      }      };     $scope.clicktomorrow = function()  {      sentiments.getdata(api,params,function(res)      {      }      };     /*default http executes*/  sentiments.getdata(api,params,function(res)      {      }      }]);

the default gets executed functions bind ng-click not executed alwsys return same json server server written in nodejs express , felixge-node/mysql , moment.

the server working clint end not work on ng-click

the base route is

app.get('/api/sentiment',function(req,res) {   var sent ={};   sent.status =false;   if(user.isdb)   {      var startdate = req.param('startdate');   var enddate = req.param('enddate');    var startvalid  = moment(startdate).isvalid();   var endvalid  = moment(enddate).isvalid();   log(startvalid + " "+endvalid);    if(startvalid && endvalid)   {        var options ={};       options.values = [];       options.values.push(startdate);       options.values.push(enddate);       options.sql = 'some query ';       options.timeout = 4000;          connection.query(options,function(err, rows, fields)       {         if (!err)         {           log("data row received query");           log("data row length : "+rows.length);           log("executing query :");           log("startdate : "+startdate);           log("enddate : "+enddate);           log(options.sql);               if(rows.length!=0)             {              sent.status =true;             sent.data = rows;             }             res.send(sent);         }       });    }   else   {     log("invalid date format/or data error");   }  } else {   log("database connection issue");    res.send(sent); }    });

and html this

 <div ng-click="clickyesterday()" class="btn btn-primary"><b>yesterday</b></div>

the problem here sentiment object in services sentiment = [];

its assigned on startup not getting re initialized holding previous value , sending same json data on every calls. since json sotred here first time call made. removing if sentiment resolves issue


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